package com.sky.mapper;

import com.sky.entity.ShoppingCart;
import org.apache.ibatis.annotations.Delete;
import org.apache.ibatis.annotations.Insert;
import org.apache.ibatis.annotations.Mapper;
import org.apache.ibatis.annotations.Update;

import java.util.List;

@Mapper
public interface ShoppingCartMapper {
    /**
     * 动态查询购物车数据
     */
    List<ShoppingCart> list(ShoppingCart shoppingCart);

    /**
     * 根据id修改购物车里面的商品数量(此时商品可以是套餐可以是菜品)
     */
    @Update("update shopping_cart set number =#{number} where id=#{id} ")
    void updateNumberById(ShoppingCart shoppingCart);

    /**
     * 插入购物车数据
     *
     * @param shoppingCart
     */
    @Insert("insert into shopping_cart (name, image, user_id, dish_id, setmeal_id, dish_flavor, number, amount, create_time) " +
            "VALUES (#{name}, #{image}, #{userId}, #{dishId}, #{setmealId}, #{dishFlavor}, #{number}, #{amount}, #{createTime})")
    void insert(ShoppingCart shoppingCart);

    /**
     * 根据用户id清空购物车数据
     * @param userId
     */
    @Delete("delete  from  shopping_cart where  user_id =#{userId}")
    void deleteByUserId(Long userId);
    /**
     * 根据购物车id删除购物车某一商品(此时商品数量为1)
     * @param id
     */
    @Delete("delete from shopping_cart where id=#{id}")
    void deleteById(Long id);

    /**
     * 批量插入购物车数据
     * @param shoppingCartList
     */
    void insertBatch(List<ShoppingCart> shoppingCartList);

}
